you can also check power button in cellphone with electronics meter outer button should be ground and inner button should show some value in cellphone.if value is not here then make this jumper as shown in diagram whit red and blue lines.and small circles on parts shows that here we can make jumper to solve cellphone problems.
you can also see if there is some water damage or rust then clean the board and parts with electronic cleaner of cellphone and also apply some heat with hot air or putt it under electrical bulb for a few mints so that it can be dry.
for more detail and new tips and tricks about cellphone problem keep visiting this page we will update it timely with new cellphone diagrams.some related post are also given bellow you can read them also for more information about cellphone.
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